Watch strap



FIG. 1 is a perspective view of a watch strap only showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevational view, left side being a mirror image;

FIG. 5 is the front elevational view thereof; and,

FIG. 6 is the rear elevational view thereof.

The broken line showing of a watch in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a watch strap, as shown and described. 